一个最简单的Rhino的例子

JSFunction.java  
  
package com.milenfan.rhino;  
  
import org.mozilla.javascript.Function;  
  
public class JSFunction // extends ScriptableObject  
{  
    private String name;  
  
    private Function handle;  
  
    public void setHandler(Function func) {  
        this.handle = func;  
    }  
  
    public Function getHandler() {  
        return this.handle;  
    }  
  
    public JSFunction(String s) {  
        this.name = s;  
    }  
  
    public static void print(String s) {  
        System.out.println(s);  
    }  
  
    public String getName() {  
        return name;  
    }  
  
    public void setName(String name) {  
        this.name = name;  
    }  
  
}  

 

 

var swingNames = JavaImporter();  
  
swingNames.importPackage(Packages.java.lang);  
swingNames.importPackage(Packages.com.milenfan.rhino);  
  
obj = {  
    a : 1,  
    b : [ 'x', 'y' ]  
}  
next = isPrime  
flag = isPrime(5)  
with (swingNames) {  
    System.out.println("in javascript");  
    JSFunction.print("in JSFunction");  
    jsFunction = new JSFunction("caizhenyao");  
    var name = jsFunction.getName();  
    System.out.println("get name from java source: " + name);  
    jsFunction.setHandler(log);  
}  
  
java.lang.System.out.println("not use swingNames");  
function isPrime(num) {  
    java.lang.System.out.println("in isPrime(num)");  
    if (num <= 1) {  
        java.lang.System.out.println("Please enter a positive integer >= 2.")  
        return false  
    }  
  
    var prime = true  
    var sqrRoot = Math.round(Math.sqrt(num))  
  
    for ( var n = 2; prime & n <= sqrRoot; ++n) {  
        prime = (num % n != 0)  
    }  
  
    return prime  
}  
  
function log(msg) {  
    java.lang.System.out.println("in function log: " + msg);  
}  

 

package com.milenfan.rhino;  
  
import java.io.FileReader;  
import java.io.LineNumberReader;  
  
import org.mozilla.javascript.Context;  
import org.mozilla.javascript.Function;  
import org.mozilla.javascript.Scriptable;  
  
public class JSExploration {  
    private Context cx;  
  
    private Scriptable scope;  
  
    public JSExploration() {  
        this.cx = Context.enter();  
        this.scope = cx.initStandardObjects();  
    }  
  
    public Object runJavaScript(String filename) {  
        String jsContent = this.getJsContent(filename);  
        Object result = cx.evaluateString(scope, jsContent, filename, 1, null);  
        return result;  
    }  
  
    private String getJsContent(String filename) {  
        LineNumberReader reader;  
        try {  
            reader = new LineNumberReader(new FileReader(filename));  
            String s = null;  
            StringBuffer sb = new StringBuffer();  
            while ((s = reader.readLine()) != null) {  
                sb.append(s).append("\n");  
            }  
            return sb.toString();  
        } catch (Exception e) {  
            // TODO Auto-generated catch block  
            e.printStackTrace();  
            return null;  
        }  
    }  
  
    public Scriptable getScope() {  
        return scope;  
    }  
  
    public static void main(String[] args) {  
        String filename = "D:\\workplace\\WebProject\\src\\com\\milenfan\\rhino\\jsmap.js";  
        JSExploration jsExploration = new JSExploration();  
        Object result = jsExploration.runJavaScript(filename);  
        Scriptable scope = jsExploration.getScope();  
        Scriptable obj = (Scriptable) scope.get("obj", scope);  
        System.out.println("obj.a == " + obj.get("a", obj));  
        Scriptable b = (Scriptable) obj.get("b", obj);  
        System.out.println("b[0] == " + b.get(0, b));  
        Boolean flag = (Boolean) scope.get("flag", scope);  
        System.out.println(flag);  
  
        Scriptable myobj = (Scriptable) scope.get("obj", scope);  
        Boolean myflag = (Boolean) scope.get("flag", scope);  
        System.out.println(myflag);  
  
        Scriptable jsFunction = (Scriptable) scope.get("jsFunction", scope);  
        Function fc = (Function) jsFunction.get("handler", jsFunction);  
        Object isPrime = fc.call(Context.getCurrentContext(), jsFunction, fc,  
                new Object[] { "this is my test" });  
    }  
}